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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/Timer.cpp@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Parent:
547:88c982c8f758 
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #include "Timer.h"
mbed_official 525:c320967f86b9 17 #include "ticker_api.h"
bogdanm 13:0645d8841f51 18 #include "us_ticker_api.h"
bogdanm 13:0645d8841f51 19
bogdanm 13:0645d8841f51 20 namespace mbed {
bogdanm 13:0645d8841f51 21
mbed_official 525:c320967f86b9 22 Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) {
mbed_official 525:c320967f86b9 23 reset();
mbed_official 525:c320967f86b9 24 }
mbed_official 525:c320967f86b9 25
mbed_official 547:88c982c8f758 26 Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) {
bogdanm 13:0645d8841f51 27 reset();
bogdanm 13:0645d8841f51 28 }
bogdanm 13:0645d8841f51 29
bogdanm 13:0645d8841f51 30 void Timer::start() {
mbed_official 358:9d7ef901f004 31 if (!_running) {
mbed_official 525:c320967f86b9 32 _start = ticker_read(_ticker_data);
mbed_official 358:9d7ef901f004 33 _running = 1;
mbed_official 358:9d7ef901f004 34 }
bogdanm 13:0645d8841f51 35 }
bogdanm 13:0645d8841f51 36
bogdanm 13:0645d8841f51 37 void Timer::stop() {
bogdanm 13:0645d8841f51 38 _time += slicetime();
bogdanm 13:0645d8841f51 39 _running = 0;
bogdanm 13:0645d8841f51 40 }
bogdanm 13:0645d8841f51 41
bogdanm 13:0645d8841f51 42 int Timer::read_us() {
bogdanm 13:0645d8841f51 43 return _time + slicetime();
bogdanm 13:0645d8841f51 44 }
bogdanm 13:0645d8841f51 45
bogdanm 13:0645d8841f51 46 float Timer::read() {
bogdanm 13:0645d8841f51 47 return (float)read_us() / 1000000.0f;
bogdanm 13:0645d8841f51 48 }
bogdanm 13:0645d8841f51 49
bogdanm 13:0645d8841f51 50 int Timer::read_ms() {
bogdanm 13:0645d8841f51 51 return read_us() / 1000;
bogdanm 13:0645d8841f51 52 }
bogdanm 13:0645d8841f51 53
bogdanm 13:0645d8841f51 54 int Timer::slicetime() {
bogdanm 13:0645d8841f51 55 if (_running) {
mbed_official 525:c320967f86b9 56 return ticker_read(_ticker_data) - _start;
bogdanm 13:0645d8841f51 57 } else {
bogdanm 13:0645d8841f51 58 return 0;
bogdanm 13:0645d8841f51 59 }
bogdanm 13:0645d8841f51 60 }
bogdanm 13:0645d8841f51 61
bogdanm 13:0645d8841f51 62 void Timer::reset() {
mbed_official 525:c320967f86b9 63 _start = ticker_read(_ticker_data);
bogdanm 13:0645d8841f51 64 _time = 0;
bogdanm 13:0645d8841f51 65 }
bogdanm 13:0645d8841f51 66
bogdanm 13:0645d8841f51 67 #ifdef MBED_OPERATORS
bogdanm 13:0645d8841f51 68 Timer::operator float() {
bogdanm 13:0645d8841f51 69 return read();
bogdanm 13:0645d8841f51 70 }
bogdanm 13:0645d8841f51 71 #endif
bogdanm 13:0645d8841f51 72
bogdanm 13:0645d8841f51 73 } // namespace mbed